Glen Caley
Caley & Son are here to help customers who need an Extension Builder in Felixstowe. We offer a competitive rate to complete all your extension buil...
Our company is built on trust and communication with our clients.We are of firm belief that our customers needs are of the utmost importance.
BOOTH DESIGN AND BUILD LTD are here to help customers who need an Extension Builder in Felixstowe. We offer a competitive rate to complete all your...
From £17,172
Felixstowe, IP11
Experienced extension builder ready to quote for your work. A M F BUILDING CONTRACTOR is the best extension builder in Felixstowe. No obligation fr...
From £16,956
George Doran
Dmc paving&landscaping we. Family run company with many years experience with over 100 reviews on other websites
From £17,556
Relax... you have found a reliable extension builder in Felixstowe. AP Laflin Builders Ltd is a friendly and reliable company based in Felixstowe w...
From £17,644
Edwin Lewis Dickinson is a well established company providing all of its customers with the very highest quality of workmanship using only the best...
From £17,300
Trusted and professional extension builder in Felixstowe. Experienced in all extension buildering work and keeping within budget and on quote. Jame...
From £17,612
San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...

Underpinning ranges from £16,796 (Caley & Son based in IP3) to £17,644 (Edwin Lewis Dickinson Ltd based in CO12), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Felixstowe by posting a job with HaMuch and we will send it to extension builders in Felixstowe.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Felixstowe | £31 | £231 |
| Underpin A Building near Harwich | £34 | £248 |
| Underpin A Building near Ipswich | £33 | £235 |
| Underpin A Building near Tendring | £31 | £226 |
| Underpin A Building near Suffolk Coastal | £28 | £215 |
| Underpin A Building near Clacton-on-Sea | £31 | £230 |
| Underpin A Building near Colchester | £34 | £232 |
| Underpin A Building near Stowmarket | £30 | £221 |
| Underpin A Building near Sudbury | £34 | £229 |
| Underpin A Building near Maldon | £36 | £244 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,325

Two storey extension - £87,737

Build a timber frame extension - £25,825

Build a swimming pool - £80,825

Single storey extension - £51,498

Side return extension - £39,530

Install an RSJ - £2,025

Outbuilding - £9,825

Build a Mansard loft conversion - £51,825

Loft conversion - £32,108

Build a kitchen extension - £41,825

Hip to gable loft conversion - £41,825

Granny annexe - £86,825

Garden office - £9,825

Convert a Garage - £15,825

Garage - £18,325

Build a flat roof extension - £21,825

Build a dormer loft conversion - £41,825

Concrete foundations - £6,075

Convert a bungalow loft - £28,825

Convert a basement - £35,530